69 lines
1.2 KiB
Go
69 lines
1.2 KiB
Go
package postgres_metadata
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import (
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"database/sql"
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"fmt"
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"github.com/sub0zero/go-sqlbuilder/generator/metadata"
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)
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type EnumInfo struct {
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name string
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Values []string
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}
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func (e EnumInfo) Name() string {
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return e.name
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}
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func getEnumInfos(db *sql.DB, schemaName string) ([]metadata.MetaData, error) {
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query := `
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SELECT t.typname,
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e.enumlabel
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FROM pg_catalog.pg_type t
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JOIN pg_catalog.pg_enum e on t.oid = e.enumtypid
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JOIN pg_catalog.pg_namespace n ON n.oid = t.typnamespace
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WHERE n.nspname = $1
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ORDER BY n.nspname, t.typname, e.enumsortorder;`
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rows, err := db.Query(query, schemaName)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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enumsInfosMap := map[string][]string{}
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for rows.Next() {
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var enumName string
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var enumValue string
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err = rows.Scan(&enumName, &enumValue)
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if err != nil {
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return nil, err
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}
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enumValues := enumsInfosMap[enumName]
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enumValues = append(enumValues, enumValue)
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enumsInfosMap[enumName] = enumValues
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}
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err = rows.Err()
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if err != nil {
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return nil, err
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}
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ret := []metadata.MetaData{}
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for enumName, enumValues := range enumsInfosMap {
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ret = append(ret, EnumInfo{
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enumName,
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enumValues,
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})
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}
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fmt.Println("FOUND", len(ret), " enums")
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return ret, nil
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}
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